6.
Now that we have discussed a recorder, we will look at the camera and
its controls and its relationship to the recorder.
a. The camera is powered by a 12-volt DC current, supplied by the
camera or the recorder through the camera cable connector housing on the
recorder and the camera by a cable.
b. With the camera receiving power from the camera or recorder, the
operator can turn on the power to the camera by using the CAMERA POWER
select switch. The CAMERA POWER select switch has three functions: (1) When
in the center position, the camera is in the OFF position, and at this time
no power is applied to the camera; (2) When the switch is in the up position
or CAMERA position, the power comes from the battery attached to the back of
the camera; (3) When the operator moves the switch to the down position, or
the VR position, the power comes from the VR battery. It is very important
for the operator to keep the CAMERA POWER switch in the OFF position when
the camera is not in use to conserve the energy from the battery.
The
camera also has two indicator lights that inform the operator that power is
being applied to the recorder or the camera or both.
c. Once the power has been applied to the camera and recorder, the
operator must white balance the camera for optimum setting that exactly
corresponds to the color temperature of the lighting. To white balance the
camera, the operator must select a position on the filter ring located back
of the lens.
Refer to manufacturer's manual for location, because exact
location varies from camera to camera. When using the outdoors (daylight)
setting, the camera is automatically adjusted for the pickup tubes rating of
3200 kelvin for normal color temperature.
At this time two white balance
settings are available.
(a) SET.
When pressing the SET position, the operator must use a
white object to white balance, noting to focus on the object.
(b) STANDARD.
When pressing the STANDARD setting button, the white
balance is electronically adjusted.
(c) For the most accurate setting, the SET button is used for a
perfect white balance.
d. Located on the zoom lens is the iris ring which has three settings
the operator can use.
The "A" position is for complete automatic iris
settings based on the amount of light entering the lens of the camera. The
"AL" position is for automatic lock which is designed to prevent the iris
from changing once the iris is set.
The "C" position is for manually
operating the iris by the operator or the close position in which no light
is permitted to enter the camera. Turning the ring past the "C" position
will allow the operator to select the f stop needed, based on lighting
conditions. There is a
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